The Alpine Onset Merino 150 Crew is the perfect base layer for our cold-weather adventures, offering breathable warmth and moisture-wicking performance. Made from a soft, non-mulesed merino wool blend, it keeps us comfortable while moving with ease. Whether we're climbing, hiking, or skiing, its lightweight design provides warmth without bulk, while UPF 30 protection allows us to stay protected when shedding layers. Flat seams and raglan sleeves ensure a comfortable fit, making it an essential part of any layering system.